puke vs excretion

puke and excretion both are nouns.

Word	Noun	Adjective	Verb	Adverb
puke	Yes	No	Yes	No
excretion	Yes	No	No	No

As nouns, excretion is a hypernym of puke; that is, excretion is a word with a broader meaning than puke:

puke: the matter ejected in vomiting
excretion: waste matter (as urine or sweat but especially feces) discharged from the body

Other hypernyms of puke include body waste, excrement, excreta, excretory product.

puke (noun)	excretion (noun)
a person who is deemed to be despicable or contemptible	the bodily process of discharging waste matter
the matter ejected in vomiting	waste matter (as urine or sweat but especially feces) discharged from the body

puke (verb)	excretion (verb)
eject the contents of the stomach through the mouth